Multi 9420
Ion concentration
ba75964e04
04/2015
49
Criteria
The AutoRead criteria affect the reproducibility of the measured values. The
following criteria can be adjusted:
high
: highest reproducibility
medium
: medium reproducibility
low
: lowest reproducibility
6.1.2 Measuring the temperature
For reproducible ion-selective measurements, it is essential to measure the
temperature of the test sample.
You have the following options to measure the temperature:
Measurement by an external temperature sensor.
Manual determination and input of the temperature.
The measuring instrument recognizes whether a suitable sensor is connected
and automatically switches on the temperature measurement.
The display of the temperature indicates the active temperature measuring
mode:
If you wish to measure (or calibrate) without temperature sensor, proceed as
follows:
3.
Using
<ENTER>
, start a further measurement with stability control.
or
Release the frozen measured value again with
<AR>
or
<M>
.
The [AR] status display disappears. The display switches back to the
previous indication.
Increasing reproducibility also causes the response time to
increase until a measured value is evaluated as stable.
Temperatur
e sensor
Resolution of the
temp. display
Temp. measurement
yes
0.1 °C
Automatic with temperature sensor
-
1 °C
Manual
1.
Measure the current temperature of the test sample.
2.
Set the temperature value with
<
><
>
.
or
In the
<ENTER>
/ISE/
Man. temperature
menu, set the temperature value
with
<
><
>
.
